In case you missed it right before the holiday weekend, ASHRAE is bringing ventilation design to an attractive, Cupertino-based device near you. Check this out from their release:"Calculating ventilation rates
H1N1 “swine flu” virus has made headlines during its second pass
through the United States’ population - including, finally and
ironically, an American pig. Understanding transmission methods for
H1N1 and influenza in general, and knowing which ventilation or
filtration countermeasures could be useful, may spell the difference
in the health of dozens or even hundreds of people in a facility
during cold and flu season.